cl1 = 1;
Point(1) = {10, 10, -1, cl1};
Point(2) = {-10, 10, -1, cl1};
Point(3) = {-10, -10, -1, cl1};
Point(4) = {10, -10, -1, cl1};
Point(35) = {9, 10, -1, cl1};
Point(36) = {5, 10, -1, cl1};
Point(37) = {-5, -10, -1, cl1};
Point(38) = {-9, -10, -1, cl1};
Line(2) = {1, 4};
Line(4) = {3, 2};
Line(56) = {35, 1};
Line(62) = {2, 36};
Line(63) = {36, 35};
Line(64) = {4, 37};
Line(65) = {37, 38};
Line(66) = {38, 3};
Line Loop(68) = {62, 63, 56, 2, 64, 65, 66, 4};
Plane Surface(68) = {68};
